So, I got an incomplete HHO kit from my Dad that he bought from one of his friends before Dad went overseas for work. I believe it's a wet cell, but I'm going to complete this kit larger than needed so I can get the wet cell working and installed on my 77 GMC, then I plan on building a much larger dry cell to replace the wet. Could I use a PWM for a wet cell that would also work on a dry cell or would I have to worry about them using amp draws completely different from each other?